$ git clone -n https://src.fedoraproject.org/rpms/mbox-importer.git /var/lib/mock/f40-build-2721471-73080/root/chroot_tmpdir/scmroot/mbox-importer
Cloning into '/var/lib/mock/f40-build-2721471-73080/root/chroot_tmpdir/scmroot/mbox-importer'...
$ git fetch origin b4e95717dc35fa0c804b919fd9e0ca24d5cad2cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mbox-importer
 * [new ref]         b4e95717dc35fa0c804b919fd9e0ca24d5cad2cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4e9571 24.02.2